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science definitions
Question | Answer |
---|---|
river basin | drainage area of a river |
estuary | a semi-enclosed area where fresh water from a river meets salt water from the sea |
watershed | all the land drained by a river, stream or lake |
groundwater | the water found in cracks and pores in sand, gravel and rocks below the earth's surface |
ecosystem | a natural system linked by living (plants, animals) and nonliving (soil,air,water) things |